Two-dimensional periodic lattice cherenkov maser: Scalability from 37.5GHz TO 350GHz

Masers capable of producing high-power output radiation in the spectral range from 100's of GHz to low-THz, to address a range of user needs will be presented. Future applications include remote sensing and biological/medical imaging (to reduce the exposure time during large area mapping). Compact masers that are capable of producing the required output power at these frequencies presently are not widely available. Many current techniques require high-voltage (sometimes up to 500kV) high-current electron beams giving multi-MW output powers. However at low-THz (0.3THz–1THz) frequencies many applications require an output power of 1kW-10kW but need compact transportable sources of coherent radiation that use a relatively low voltage (from 50kV-100kV) and low current (up to 100 A) electron beam.